package com.liuxm.gateway.filters;

import cn.hutool.core.util.StrUtil;
import lombok.extern.slf4j.Slf4j;
import org.springframework.cloud.gateway.filter.GlobalFilter;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.core.annotation.Order;
import org.springframework.http.HttpStatus;
import org.springframework.http.server.reactive.ServerHttpRequest;
import org.springframework.http.server.reactive.ServerHttpResponse;
import reactor.core.publisher.Mono;

/**
 * @author liuxm
 * @version 1.0
 * @date 2021/3/23 22:33
 */
@Configuration
@Slf4j
public class FilterConfiguration {

    @Bean
    @Order(-2)
    public GlobalFilter globalFilter1() {
        return ((exchange, chain) -> {
            log.info("过滤器1的pre阶段");
            ServerHttpRequest request = exchange.getRequest();
            String token = request.getQueryParams().getFirst("access-token");
            if (!StrUtil.equals("admin", token)) {
                ServerHttpResponse response = exchange.getResponse();
                response.setStatusCode(HttpStatus.UNAUTHORIZED);
                return response.setComplete();
            }


            return chain.filter(exchange).then(Mono.fromRunnable(() -> {
                log.info("过滤器1的post阶段！");
            }));
        });
    }

}
